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已知活性炭对很多反应是一种极好的催化剂.Activated charcoal is known to be an excellent catalyst for many reactions.蒸气回收罐中充满了活性炭.The canister is filled with activated charcoal.活性炭罐蒸气排泄阀是由真空控制的.The canister vapor - vent value is operated by v...
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“兜圈子”的英语可以翻译为： go around in circles，circle，beat about [around] the bush，talk in a roundabout way，make the round of ...
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这个地区在20世纪90年代成了新的投资热点。In the 1990s the area became a magnet for new investment.眼下这个问题是争论的热点.This is an issue of great contention at the moment.我喜欢读热点新闻.I like reading hot news....
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I sit down, thread a needle, snip off an old button.我坐下来，穿好针，剪下一枚旧纽扣。He has now begun to snip away at the piece of paper.现在他已经开始剪这张纸。I had to take my little scissors and snip them away.我只好翻出小剪子把新睫毛都剪了....
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n.垂体切除术...
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air conditioner的音标：air conditioner的英式发音音标为：[eə(r) kən'diʃənə]air conditioner的美式发音音标为：[er kən'dɪʃənɚ]...
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n.记录搜索接收机...
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n.双线期...
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岷江流域蠛蠓三新种 ( 双翅目: 蠓科 )THREE NEW SPECIES OF LASIOHELEA FROM MINJIANG RIVER BASIN, SICHUAN ( DIPTERA: CERATOPOGONIDAE )我国库蠓四新记录 ( 双翅目: 蠓科 )FOUR NEW RECORDS OF CULICOIDES FROM CHINA ( DIPTERA: CERATOPOGONIDAE )库蠓属的两个新种 ( 双翅目...
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She could hear his ragged breathing, as if he had been running.她能听到他不均匀的呼吸声，似乎他是跑着过来的。He looked at Ellen, breathing evenly in her sleep.他看着埃伦，她正呼吸均匀地睡着。Firms need a breathing space if they are to recover.这些公司需要短暂休整才能恢复元气...
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这些做法对于植物的能育性常有损害,这一点是无可置疑的.That these processes are often injurious to the fertility of a plant cannot be doubted.这样的杂交随时都会发现有合理的间型能育性.Such crosses are found to be reasonably interfertile....
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“涵义”的拼音为：hán yì...
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“祸害”的拼音为：huò hai ...